I am wanting to use a second amp to create a wet / dry, 2 amp set up but am dealing with the accompanying ground loop hum. I have done a search and read various threads about this, and I understand that there are a number of ways of doing a wet/dry set up and also of dealing with ground loop hum. But I wanted to just discuss it a bit here with anyone who has some experience doing it. One reason that I have now begun wanting to do this again is that I just watched a recent episode of "That Pedal Show" (a really enjoyable You Tube show by the way) that deals with doing a 2 amp setup. Dan explained several ways of using Stereo effects with 2 amps and the one he likes the best used the effects in front of the amp, then split to two different amps. The way he does it is to route the signal through the pedals on his pedal board to a splitter/ hum eliminator (specifically he is using a device from GigRig called a HumDinger). He then takes one of the split signals, from the HumDinger, on through the time based effects (chorus, delay and reverb) to the "wet" amp and the other split signal, from the HumDinger, to a "dry" amp. I would like to do the same or a similar thing. I might instead use my FX loop in my "wet amp" for the delay and reverb, and then send the second split signal to a second ("dry") amp. I have checked out that device that Dan is using (the GigRig HumDinger) and it can be ordered from Analogman or from the GigRig website but it is kind of pricey compared with other choices. Ebtech also has a splitter/hum eliminator box called a Hum Eliminator, which is about 1/2 the price of the GigRig box. But Ebtech also makes something called the Hum X with is even less expensive and it simply is a small device that you plug one of the two amps into (the power cord plug) and then plug that into the power outlet. This stops the ground loop hum where the power comes into the second amp. I understand that the more expensive unit (GigRig) also addresses the problem of signal degradation from long audio cords on stage, in addition to eliminating ground loop hum. But basically right now I am just playing at home and do not need to deal with long cables or various stage applications. So I am wondering.... To just solve the ground loop hum problem in doing a two amp set up, is using the simple Ebtech Hum X device (which seems to be the most simple and inexpensive choice) to stop the ground loop hum at the power cable of one of the amps totally sufficient? Or is there some other desirable benefit to getting one of the splitter/hum eliminator boxes (from Ebtech or GigRig or somewhere else) to add to my pedal board to run the signal through going to the amps ? And I do not need a splitter box specifically to create a split signal because I will just use one of my stereo pedals at the end of my pedal board signal chain to split the signal to the two amps (and as I said above I will probably also put my delay and reverb in the FX loop of my one of the two amps). Anyone use any of these devices or have any experience with, understanding of or advice about using them... and specifically about the Ebtech Hum X product ?